A student in east China's Anhui Province was axed to death in a university library on Thursday morning, local authorities said.
 
The victim, surnamed Tan, 23, a senior student majoring in biomedical engineering of Anhui Medical University based in the provincial capital of Hefei, was killed at about 7:45 a.m..
 
He was axed to death in a classroom on the sixth floor of the library, a Hefei municipal public security official said.
 
A witness said Tan was attacked in the neck.
 
The attacker, surnamed Hu, 23, a senior student majoring in clinical medicine in the same university, has been detained by police.
 
The cause of the incident is under investigation.